The distribution of quasar emission-line redshifts

Details The distribution of quasar emission-line redshifts The distribution of quasar emission-line redshifts

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...134..234b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 134, no. 2, May 1984, p. 234-239. Research supported by the Natural Sciences a

Astronomy and Astrophysics

Astrophysics

22

Cosmology, Emission Spectra, Quasars, Red Shift, Statistical Distributions, Ultraviolet Spectra, Periodic Variations, Power Spectra

Scientific paper

Data from the quasar catalog of Hewitt and Burbidge (1980) have been analyzed in a search for periodicities and other non-uniformities in the distribution of quasar emission-line redshifts. Power spectrum analyses have been applied to search for periodicities in redshift or in metric distance, which Fang et al. (1982) claim to find. Much of the data set appears to be severely biased by selection effects. This bias explains some apparent periodicities. When the less-biased radio quasars are studied, no compelling evidence for periodicities is found.

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